This implementation allows Pod to request multiple hugepage resources
of different size and mount hugepage volumes using storage medium
HugePage-<size>, e.g.
spec:
containers:
resources:
requests:
hugepages-2Mi: 2Mi
hugepages-1Gi: 2Gi
volumeMounts:
- mountPath: /hugepages-2Mi
name: hugepage-2mi
- mountPath: /hugepages-1Gi
name: hugepage-1gi
...
volumes:
- name: hugepage-2mi
emptyDir:
medium: HugePages-2Mi
- name: hugepage-1gi
emptyDir:
medium: HugePages-1Gi
NOTE: This is an alpha feature.
Feature gate HugePageStorageMediumSize must be enabled for it to work.
The pod, container, and emptyDir volumes can all trigger evictions
when their limits are breached. To ensure that administrators can
alert on these type of evictions, update kubelet_evictions to include
the following signal types:
* ephemeralcontainerfs.limit - container ephemeral storage breaches its limit
* ephemeralpodfs.limit - pod ephemeral storage breaches its limit
* emptydirfs.limit - pod emptyDir storage breaches its limit
Filesystem mismatch is a special event. This could indicate
either user has asked for incorrect filesystem or there is a error
from which mount operation can not recover on retry.
Co-Authored-By: Jordan Liggitt <jordan@liggitt.net>
The types were different so the diff output is not useful, both
should be pointers:
```
Feb 05 19:44:40 ci-ln-6k7l4-w-c-w9wbb.c.openshift-gce-devel-ci.internal hyperkube[2737]: I0205 19:44:40.222259 2737 status_manager.go:642] Pod status is inconsistent with cached status for pod "prometheus-k8s-1_openshift-monitoring(0e9137b8-3bd2-4353-b7f5-672749106dc1)", a reconciliation should be triggered:
Feb 05 19:44:40 ci-ln-6k7l4-w-c-w9wbb.c.openshift-gce-devel-ci.internal hyperkube[2737]: interface{}(
Feb 05 19:44:40 ci-ln-6k7l4-w-c-w9wbb.c.openshift-gce-devel-ci.internal hyperkube[2737]: - s"&PodStatus{Phase:Running,Conditions:[]PodCondition{PodCondition{Type:Initialized,Status:True,LastProbeTime:0001-01-01 00:00:00 +0000 UTC,LastTransitionTime:2020-02-05 19:13:30 +0000 UTC,Reason:,Message:,},PodCondit>
Feb 05 19:44:40 ci-ln-6k7l4-w-c-w9wbb.c.openshift-gce-devel-ci.internal hyperkube[2737]: + v1.PodStatus{
Feb 05 19:44:40 ci-ln-6k7l4-w-c-w9wbb.c.openshift-gce-devel-ci.internal hyperkube[2737]: + Phase: "Running",
Feb 05 19:44:40 ci-ln-6k7l4-w-c-w9wbb.c.openshift-gce-devel-ci.internal hyperkube[2737]: + Conditions: []v1.PodCondition{
```
